Home / 987,764.60-1,481,711.70-277,815.80

Finding the Fourth Proportional to 987,764.60, 1,481,711.70 and 277,815.80

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Solution

The fourth proportional to 987,764.60, 1,481,711.70 and 277,815.80 is: 416,741.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,764.60 : 1,481,711.70 = 277,815.80 : x
  2. Step 2: Convert to fraction form
    987,764.60/1,481,711.70 = 277,815.80/x
  3. Step 3: Cross multiply
    987,764.60x = 1,481,711.70 × 277,815.80
  4. Step 4: Simplify right side
    987,764.60x = 411,642,921,304.86
  5. Step 5: Solve for x
    x = 411,642,921,304.86/987,764.60
  6. Step 6: Final answer
    x = 416,741.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.